New
#11
Copied the code into a text file and saved it with the name I gave it with the .ps1 extension.
Right-clicked on the .ps1 file and selected Send to > Compressed (zipped) folder.
Added a dash in the name, since PowerShell doesn't like spaces in script names.
Re-uploaded to post #10.
Last edited by OldNavyGuy; 29 Jun 2020 at 20:47.
@Tonkski,
Use Macrium Reflect Free to make a backup image of your existing drive to the spare HDD. Do a clean install of Windows 10 to the current drive in UEFI mode (make sure to delete all the partitions on the existing drive during the clean install). Then restore ONLY the C: drive partition from you backup image right over the top of the new C: drive partition created by the clean install. I would also suggest when you use Macrium Reflect Free that you create a Macrium Rescue USB flash drive because after copying your backup image of C: drive back to the original disk, you may need to run the utility included with Macrium Reflect to fix Windows boot problems, and that is only available when booted from the rescue USB flash.
This will give you a completely proper layout for UEFI on your disk, and you get to keep your previous OS. This method won't cost you anything but time.
I think the UEFI boot files need to be configured in the EFI partition as well, after the restore.
See the section To restore an image to the GPT disk, ready to boot in UEFI, step 3.
How to Restore an MBR System image to UEFI/GPT (Convert, GPT, MBR, Restore)
real simple fix.. Open Command Prompt (Admin) and type
Set BIOS to enable Legacy/CSM supportCode:Diskpart select disk 0 select partition 1 format fs=ntfs label="SYSTEM" assign letter="S" active exit bcdboot C:\Windows /s S: /f Bios
This will solve your problem........
Then you can later choose to reinstall or convert to GPT/UEFI at any time
That will reformat your existing system partition that the computer is booting from and then create the boot files needed to boot the computer in legacy BIOS (CSM) mode. After booting in legacy BIOS (CSM) mode, then Windows upgrade should proceed because you will no longer be in UEFI mode.
I think OP said in post #1 he set his BIOS to boot UEFI.
Would he not have to change this back to "Legacy".
A snippet from his manual. I did not see option for CSM Mode although "Advance Boot Options" maybe providing this functionality.
from here
https://www.dell.com/support/manuals...ee3&lang=en-us